usage: some point or period in time; "it should arrive any day now"; "after that day she never trusted him again"; "those were the days"; "these days it is not unusual"

3. day, time

usage: a day assigned to a particular purpose or observance; "Mother's Day"

4. day, calendar day, civil day

usage: the time after sunrise and before sunset while it is light outside; "the dawn turned night into day"; "it is easier to make the repairs in the daytime"

5. day, daytime, daylight, time period, period of time, period

usage: the recurring hours when you are not sleeping (especially those when you are working); "my day began early this morning"; "it was a busy day on the stock exchange"; "she called it a day and went to bed"

6. day, work time

usage: an era of existence or influence; "in the day of the dinosaurs"; "in the days of the Roman Empire"; "in the days of sailing ships"; "he was a successful pianist in his day"

7. day, era, epoch

usage: the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis; "how long is a day on Jupiter?"

8. day, time period, period of time, period

usage: the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day

9. sidereal day, day, time unit, unit of time, sidereal time

usage: a period of opportunity; "he deserves his day in court"; "every dog has his day"

10. day, opportunity, chance

usage: United States writer best known for his autobiographical works (1874-1935)

Infoplease knows the value of having sources you can trust. Infoplease is a reference and learning site, combining the contents of an encyclopedia, a dictionary, an atlas and several almanacs loaded with facts. Our editors update and regularly refine this enormous body of information to bring you reliable information.